WIRELESS COMMUNICATION METHOD AND SYSTEM FOR CONTROLLING DATA BIT RATES TO MAINTAIN THE QUALITY OF RADIO LINKS

摘要

A wireless communication method and system for controlling the current data bit rate of a radio link (RL) to maintain the quality of the RL. The system includes a core network (CN), a radio network controller (RNC) and at least one wireless transmit/receive unit (WTRU). The RL is established between the RNC and the WTRU. The RNC establishes a guaranteed data bit rate, a maximum data bit rate and a current data bit rate associated with the RL. When the RNC senses an event which indicates that the quality of the RL has substantially deteriorated, the RNC reduces the value of the current data bit rate. Then, in a recovery process, if a similar event does not occur during an established waiting period, the RNC restores the current data bit rate back to the maximum data bit rate.

主权项

1. A method for use in a wireless transmit/receive unit (WTRU), the method comprising:
establishing at least one radio link (RL) with a network via a base station (BS); receiving data at a first data rate associated with the at least one RL; monitoring the at least one RL to determine a block error rate (BLER) and to measure transmission power; transmitting an RL quality measurement report to the network to enable the network to determine a deterioration in quality of the at least one RL, wherein the RL quality measurement report includes the determined BLER and the measured transmission power; and receiving data at a second data rate determined by the network, wherein the second data rate is lower than the first data rate on a condition that the network sensed a deterioration in quality of the at least one RL based on the RL quality measurement report.